埃德蒙顿华人社区-Edmonton China

 找回密码
 注册
查看: 3016|回复: 3

[技术互助] A Tip on changing 3 phase AC motor rotation

[复制链接]
鲜花(0) 鸡蛋(0)
发表于 2010-4-14 11:27 | 显示全部楼层 |阅读模式
老杨团队,追求完美;客户至上,服务到位!
本帖最后由 td456 于 2010-4-14 12:28 编辑 & H' I# h; z& Z3 f
) i: g9 O6 ]  Y2 d
We all know that if you want to change the rotation of a three  phase AC motor.
1 y+ ]! K8 T! O* XJust swap any of the two phase leads., b6 \& S9 s9 H2 k
But for VFD application you need to do the swap after the inverter.
* E0 Y# v7 K1 T( C9 ZIf you swap the leads before the inverter, it will not work.
鲜花(0) 鸡蛋(0)
发表于 2010-4-14 18:18 | 显示全部楼层
go go go
鲜花(0) 鸡蛋(0)
发表于 2010-4-19 14:38 | 显示全部楼层
Yes, Good point.; K( S* e* n" F: K$ e3 H- r& A4 l
% G* h3 j. B2 z( D: i
As the principal of the VFD works, bascially from AC to DC, then DC to AC.
3 h/ O$ M- O' W) w7 o
8 P1 k5 w: w  ~7 u  c/ B$ ZThe phase rotation of the output of the VFD connecting to the motor is based on the sequence "open" or "close" controlled by the inverter pre-set inside; any changes to the phase rotation of the feeder will not affect the DC rotation, as DC is NO phase at all.
1 t* c, p1 q/ u; \5 p4 `4 V8 Q& V& L3 Z; E  H
The only thing you can change the rotation of the motor is the output side of the VFD, NOT the input of the VFD.
鲜花(0) 鸡蛋(0)
发表于 2010-7-4 00:19 | 显示全部楼层
老杨团队 追求完美
k vo0u8p["
您需要登录后才可以回帖 登录 | 注册

本版积分规则

联系我们|小黑屋|手机版|Archiver|埃德蒙顿中文网

GMT-7, 2025-6-23 16:38 , Processed in 0.115787 second(s), 17 queries , Gzip On, APC On.

Powered by Discuz! X3.4

Copyright © 2001-2021, Tencent Cloud.

快速回复 返回顶部 返回列表